Very Fast-acting, Current-limiting Fuse (JJS Bussmann Series)

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T-Tron® Very Fast-Acting Fuses. Class T — 600 Volt, 1 to 800 Amps


  • Series combination ratings with branch circuit breakers allows broad range of coverage, independent of breaker manufacturer
  • Current limitation for non-inductive circuits provides Class T current-limiting response to maximum ground fault and short-circuit conditions
  • 200kA interrupting rating provides high ratings at all circuit locations
  • Small footprint allows more efficient use of available space


  • Large Apartment Complexes
  • Multi-Family Meter Stacks
  • VFD Line Protection